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daser333 [38]
4 years ago
8

The sum of a rational number and a positive integer is rational.

Mathematics
2 answers:
gavmur [86]4 years ago
7 0

Answer:

The sum of a rational number and a rational number is rational.

A)  Always True  

B)  Sometimes True  

C)  Usually True  

D)  Never True

A. Always  True

Step-by-step explanation:

Marina86 [1]4 years ago
5 0

Answer:

Step-by-step explanation:

Always True

Positive integers are rational numbers. Adding two rational numbers produces another rational number.

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il63 [147K]

the answer would be 71

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3 years ago
Help with 7 and 8 and explain
Tems11 [23]

Answer:

7.  44^{\circ}

8.

Step-by-step explanation:

7. Using Cosine Rule

a^2=c^2 +c^2+bcCos(a)

=>a^2=20^2+15^2-2*20*15Cos(68^o)

   a^2=400.24

   a=20.00

=>Using Sine Rule

    20/Sin 68^o=15/sinB

      ABC=44^o

8

5 0
3 years ago
The graph represents one side of the roof of a building. ​
lakkis [162]

Answer:the answers are: 0,1 and 2,7 and 4, 14

Step-by-step explanation:

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5 0
4 years ago
Which graph could be used to indicate a greater increase in monthly gas prices? Explain
Alika [10]
<h2>Answer:</h2><h2>Inflation chart or graph could be used to indicate a greater increase in monthly gas prices</h2>

Step-by-step explanation:

Inflation is a quantitative measure of the rate at which the average price level of a basket of selected goods and services in an economy increases over some period of time.

Inflation chart is ususally used to inflation of a product which can be represented in terms of peecentage of inflation or inflation in product rate,

To indicate a greater increase in monthly gas prices, inflation chart can be used for gtaphical representation with month's name in X axis and the gas price in Y axis.

8 0
3 years ago
A tank can be filled by one pipe in four hours and by a second pipe in six hours; and when it is full, the tank can be drained b
just olya [345]
12 hours..........
+ - = 1
Multiply by 12 to clear the fractions
3t + 2t - 4t = 12
t = 12 hrs to fill the pool
3 0
3 years ago
Read 2 more answers
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